MAXIMUM STRENGTH OF SHIP HULLS SUBJECTED TO MOMENT, TORQUE AND SHEAR

A method is described for determining the maximum strength and behavior of longitudinally stiffened ship hull girders of single- cell cross section subjected to moment, torque and shear. The method gives a continuous relationship between the curvature and a load parameter. The compression flange is assumed to behave as if it was composed of parallel beam-columns whose axial load-deformation relationship is to be provided for this method (e.g., by other computer programs). The axial response of the tension flange and of the web stiffeners is assumed to be of a bi-linear, elastic-plastic pattern. Multiple tension-field action is assumed for the postbuckling shear response of the girder web subpanels. This method can maintain the section as plane or accommodate any degree of warping as specified by the user. An efficient procedure is developed to accelerate the iterative process of establishing equilibrium of forces on the cross section. A comparison of this method with the results of twelve tests on box girder specimens (ship hull and bridge models) shows this method to be acceptably accurate for the combined loading of moment, torque and shear.

  • Supplemental Notes:
    • Report
  • Corporate Authors:

    Lehigh University

    Bethlehem, PA  United States  18015
  • Authors:
    • Ostapenko, A
    • Moore, T R
  • Publication Date: 1982-11

Media Info

  • Features: References;
  • Pagination: 73 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00660792
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Report/Paper Numbers: FEL-R-479.5
  • Contract Numbers: MA-81-SAC-10059
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM